C H A P T E R
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Replacing Upper or Lower Fan Tray
The upper fan tray draws air up through the chassis for cooling and ventilation. It then exhausts the heated
air through the vents at the upper-rear of the chassis.
The lower fan tray draws air from the front and sides and pushes it through the chassis for cooling and
ventilation.
Do not operate the chassis without the fan tray(s) installed. Doing so even for short periods of time may
cause the system to overheat and result in component damage.
Caution
This chapter provides instructions for the removal and replacement of the upper and lower fan tray assemblies
should there be a partial or complete failure of either one.
During installation, maintenance, and/or removal, wear a grounding wrist strap to avoid ESD damage to
the components. Failure to do so could result in damage to sensitive electronic components and potentially
void your warranty.
Caution
This chapter includes the following sections:
•
Determining Whether a Fan Tray Needs Replacing, page 205
•
Removing an Upper Fan Tray, page 207
•
Installing an Upper Fan Tray, page 208
•
Removing a Lower Fan Tray Assembly, page 209
•
Installing a Lower Fan Tray Assembly, page 210
•
What to do with the Failed Fan Tray, page 212
Determining Whether a Fan Tray Needs Replacing
The system has several ways to indicate a fan tray failure. The first indicator is that the Status LED on the
System Resource Card (SRC) turns red to indicate the failure of a chassis component.
ASR 5000 Installation Guide
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Содержание ASR 5000
Страница 16: ...ASR 5000 Installation Guide xvi About this Guide Contacting Customer Support ...
Страница 64: ...ASR 5000 Installation Guide 48 Installation Procedure Overview Laser Notice ...
Страница 100: ...ASR 5000 Installation Guide 84 Line Card Installation Installing the XGLC ...
Страница 118: ...ASR 5000 Installation Guide 102 Cabling the Switch Processor Input Output Line Card Central Office Alarm Wiring Example ...
Страница 122: ...ASR 5000 Installation Guide 106 Cabling the Fast Ethernet 10 100 Line Card FLC2 Interfaces ...
Страница 136: ...ASR 5000 Installation Guide 120 Cabling the Optical ATM Line Cards Cabling the Optical SFP Interface ...
Страница 140: ...ASR 5000 Installation Guide 124 Cabling the Channelized Line Cards Cabling the Optical SFP Interface ...
Страница 144: ...Figure 49 PFU Wiring Diagram ASR 5000 Installation Guide 128 Cabling the Power Filter Units Power Cable Requirements ...
Страница 148: ...ASR 5000 Installation Guide 132 Cabling the Power Filter Units Connecting the PFU to the Power Source ...
Страница 206: ...ASR 5000 Installation Guide 190 Removing and Installing SMC PC Cards Removing PC Cards ...
Страница 212: ...ASR 5000 Installation Guide 196 Replacing the Chassis Air Filter Installing the Air Filter ...
Страница 220: ...ASR 5000 Installation Guide 204 Replacing a Power Filter Unit What to do with the Failed PFU ...
Страница 266: ...ASR 5000 Installation Guide 250 Safety Electrical and EMC Certifications Korean EMC ...
Страница 270: ...ASR 5000 Installation Guide 254 Environmental Specifications Chassis Air Flow ...
Страница 280: ...ASR 5000 Installation Guide 264 Preparing a Full Height Line Card Slot Remove the Half Height Card Guide ...
Страница 294: ...ASR 5000 Installation Guide 278 Spare Component Recommendations Spare Component Recommendations ...